Internal-combustion engine



I N. FRED RI-KSSON. INTERNAL COMBUSTION ENGINE. APPLICATION man AUG-.20. 1919.

1,334,951 Patented Mar. 30,1920.

dll a centrifugal or other rotary pump, is at- NlILS rnnnmsson, or s'ro'cxnomu SWEDEN.

INTERNAL-COMBUSTION Emma. 7

Specification of Letters Extent. Patented Mar. 30, 1920.

Application filed- August 20, 1919. Serial 'No. 318,781.

To all wliom it may concern:

Be it known t at I, NILS FnnomKsspN, a subject of the King of Sweden, residing at Stockholm, in the Kingdom of Sweden, have invented a new and useful Improvement in Internal-Combustion Engines, of-

which the following is a specification.

The present. invention relates to an mprovement in internal combustion engines of the type which are providedin the ordinary manner with a cooling device for the circulating water, a pump or effecting the circulation of the water, a fan for producing an air current for cooling the water, and a starting crank for starting the engine.

The improvement consists p'rinci ally in this that the circulating pump, the an, and the starting crankare combined with the cooling device in such manner as to form together with the said device a combined apparatus which may be connected with the engine. In this manner a considerable saving of space and a greater simplicity of construction as well as a better possibility of connecting in suitable manner the said devices, which are combined into a unit, with engines of any desired'type is obtained, than if the devices are mounted each by itself as heretofore practised... For this reason the with the shaft of the pump and the fan, said shaft 7 being journaled in a bearing 8 rigidly secured by means of arms 9 to the side of the casing of the cooling device opposite the side to which the pump 3 is secured. Said shaft 7 supports at its outer end the starting crank 10 and at its inner end a aw clutch member 11, said shaft 7 being movable axial y so that the jaw member 11 may be brought into engagement with a corresponding jaw clutch member on the hub of the fan wheel 6. provided a coil spring 12 around the shaft 7 which spring serves to maintain the jaw member 11 normally out of engagement with the fan wheel" The starting of the engine is effected in the usual manner when the jaw clutch member 11 hasv been moved into engagement with the corresponding member; on the hub of' the fan wheel, the starting movement being thus transmitted to the engine shaft through the shaft 4 and the clutch 5. The jaws on the clutch member 11 as well as on the fan wheel hub are oblique in the ordinary manner, so that the starting crank is automatically disengaged when the engine is started.

It will be understood from the above description and from.the drawing that the Finally, there is device is especially adapted to be used on circulating pump, the fan and the starting Referring to the drawing 1 denotes the. motor engine and 2 the cooling device,

which may he of any suitable construction. The circulating pump 8, which is suitably tached directly to one side of the casing of the cooling device." The shaft i of the pump projects beyond its bearings, and the end of said shaft directed toward the motor supports a jaw clutch 5, a gear wheel or other means for effecting a driving connection between said shaft and the en ine shaft. The other end of the pump shaft projects into the lower portion of the casing of the cooling device and supports a fan wheel 6 of any suitable construction, which fan wheel serves to produce an air current through the cooling device for cooling the water. A shaft 7 is mounted in alinement crank form together with the coolin device a unit, and the combination is so esigned that the entire apparatus requires the least possible space. It will be understood, however, that the combination of the various devices shown in the drawing may be varied in several respects without departing from the principle of the invention.

I claim: f

i. The combination with an internal corn bustion engine of an apparatus comprising a cooling device, a circulating pump, a fan,

and a starting crank, combined into a unit provided with means for being connected to the engine.

2. The combination with an internal combustion engine of an apparatus comprising a cooling device, having a casing, a fan 3. The combination with an internal com- 0nd shaft journaled in said casing in aline- ,bustion engine of an apparatus comprising 'ment with the first named shaft and proa cooling device having a casing, a fan vided with a clutch member on one end, and 10 mounted within said casing, a circulating a starting crank on said second shaft, said 6 pump mounted on the outside of-said casing, cooling device, fan, pump, shafts, and crank a common shaft for said fan and said pump being combined into a unit. having clutch members at both ends, a sec N ILS FREDRIKSSON. 

